Preparation and physicochemical properties of soluble dietary fiber from orange peel assisted by steam explosion and dilute acid soaking.
Identifieur interne : 000485 ( Main/Exploration ); précédent : 000484; suivant : 000486Preparation and physicochemical properties of soluble dietary fiber from orange peel assisted by steam explosion and dilute acid soaking.
Auteurs : Lei Wang [République populaire de Chine] ; Honggao Xu [République populaire de Chine] ; Fang Yuan [République populaire de Chine] ; Rui Fan [République populaire de Chine] ; Yanxiang Gao [République populaire de Chine]Source :
- Food chemistry [ 0308-8146 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Sulfuric Acids.
- chemical : Steam, Water.
- analysis : Dietary Fiber.
- chemistry : Citrus sinensis, Fruit.
- methods : Food Handling.
- Calorimetry, Differential Scanning, Microscopy, Electron, Scanning, Molecular Weight, Physicochemical Phenomena, Solubility.
Abstract
The coupled pretreatment of orange peel with steam explosion (SE) and sulfuric-acid soaking (SAS) was investigated to enhance the yield and improve the functionality of soluble dietary fiber (SDF). When orange peel was pretreated by SE at 0.8MPa for 7 min, combined with 0.8% SAS, the content of SDF was increased from 8.04% to 33.74% in comparison to the control and SDF prepared with SE-SAS showed the high water solubility, water-holding capacity, oil-holding capacity, swelling capacity, emulsifying activity, emulsion stability and foam stability. SDF from orange peel treated by SE-SAS exhibited significantly (p < 0.05) higher binding capacity for three toxic cations (Pb, As and Cu) and smaller molecular weight (Mw = 174 kDa). Furthermore, differential scanning calorimetry (DSC) measurement showed that SDF from orange peel treated by SE-SAS had a higher peak temperature (170.7 ± 0.4 °C) than that of the untreated sample (163.4 ± 0.3 °C). Scanning electron micrograph (SEM) images demonstrated that the surface of SDF from orange peel treated by SE-SAS was rough and collapsed. It can be concluded that SDF from orange peel treated by SE-SAS has the higher potential to be applied as a functional ingredient in food products.
DOI: 10.1016/j.foodchem.2015.03.112
PubMed: 25952845
Affiliations:
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When orange peel was pretreated by SE at 0.8MPa for 7 min, combined with 0.8% SAS, the content of SDF was increased from 8.04% to 33.74% in comparison to the control and SDF prepared with SE-SAS showed the high water solubility, water-holding capacity, oil-holding capacity, swelling capacity, emulsifying activity, emulsion stability and foam stability. SDF from orange peel treated by SE-SAS exhibited significantly (p < 0.05) higher binding capacity for three toxic cations (Pb, As and Cu) and smaller molecular weight (Mw = 174 kDa). Furthermore, differential scanning calorimetry (DSC) measurement showed that SDF from orange peel treated by SE-SAS had a higher peak temperature (170.7 ± 0.4 °C) than that of the untreated sample (163.4 ± 0.3 °C). Scanning electron micrograph (SEM) images demonstrated that the surface of SDF from orange peel treated by SE-SAS was rough and collapsed. It can be concluded that SDF from orange peel treated by SE-SAS has the higher potential to be applied as a functional ingredient in food products.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country><settlement><li>Pékin</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Wang, Lei" sort="Wang, Lei" uniqKey="Wang L" first="Lei" last="Wang">Lei Wang</name></noRegion><name sortKey="Fan, Rui" sort="Fan, Rui" uniqKey="Fan R" first="Rui" last="Fan">Rui Fan</name><name sortKey="Gao, Yanxiang" sort="Gao, Yanxiang" uniqKey="Gao Y" first="Yanxiang" last="Gao">Yanxiang Gao</name><name sortKey="Xu, Honggao" sort="Xu, Honggao" uniqKey="Xu H" first="Honggao" last="Xu">Honggao Xu</name><name sortKey="Yuan, Fang" sort="Yuan, Fang" uniqKey="Yuan F" first="Fang" last="Yuan">Fang Yuan</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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